Improvement in cockle-separator



ANDREWS & GODFREY.

Seed Separator.

No. 92,559. I Patented July 13, 1869.

waited sate against Milne.

s. ANDREWS A D L. GODFREY. OF GREEN-EVILLE. TENNESSEE.

Letters Patent N 92,559, dated July 13, 1869.

To all whom it ma/y concern.-

Be it known that we, S. W. ANDREWS and L.GoD- FREY, both of Greeneville, Greenecounty, Tennessee, have invented a new and useful Improvement in Cockle-Separators; and we do hereby declare that the following is. a full and exact description thereof, refer-' an adjustable hopper, so as tofall between a guru roller and a hard roller. .I The two rollers being put in motion, the cockle and wheat are pressed between them, and the cookie is thereby caused to adhere to the gum when and to be carried around and dropped into a receptacle prepared for it, while the pure wheat falls directly from the rollere, upon a screen. which separates the smalhke'rnels from the large.

In'the drawings-- A represents the walls,and

B, the top of the case or frame.

C is a roller, of wood, metal, or other hard substance.

-Alongside of it, and slightly. above it, is another roller, D, covered with or entirely composed of, rubber, gutta-percha, or other soft material, the two being arranged'as shown, and being connected by cog gearing c c, by which the motion imparted to the roller 0 by a crank, E, is communicated to the other roller'D.

F is a wire screen, or sieve, arranged under the rollers, as shown in fig. ,l, and to which a rapid vibratory motion is imparted, by means of a bent-arm, j, the end of which comes in contact with the cog-rim c, as shown in the drawings. 1

v G is a hopper, arranged over the hard roller, as shown, and the feed of 'which is adjustable by means of a hinged rod,-or bail, e, and an incline, I, the space between the lower front edge of the hopper and the surface. of the roller being enlarged or diminished, in proportion as the bail is made to assume a more or less vertical position. I

'A slide bottom, or any other common device for regulating the feed, may be employed instead of this, if preferred.

A screen or partition may be employed, if necessary, toseparate the cog-rim c from the wheat, and prevent the latter from working among the cogs and getting crushed or interfering with the action of the machine.

Such partition may extend entirely around both rollers, or may simply consist of a triangular plate insorted between them, as shown at a.

' The operation of this machine is as follows:

The edgeof the hopper 'isadjusted above the-roller far enough .to admit wheat of the largest size to pass. The rollers are then put in motion in the direction indicated by the arrowsin fig. 1, which carries the inipure grain through between them.

The pressure of the hard roller against the soft one causes the barbed and rough cockle to adhere to the latter, and be carried round, by it, so as not to fah on the sieve F, and a scraper may be arranged at the ex: treme rear edge of the soft roller, to scrape oil the cookie at that point, and allow it to (hop upon' an incline which will carry it away or into a suitable receptacle.

The smooth, plump kernels of good wheat, as soon gravity, uponthe screen.

The soft, smooth roller is 1 arranged shghtly above the other, in'order that the kernels'of wheat, in falling; may not detach the cockle from the soft roller;

The hopper G may have a'vibratory or tremulous "motion imparted to it"by any suitable"means, to""in sure the proper feed of the' grain to" the rollers, if it be thought that the jar caused by the working of the machine is not suflicient for that purpose. And" any other suitable means may be employed,"in'stead'of the device shown, for communicating a vibratory motion to the sieve F. r

The advantages claimed for this machine above all others are,that it will thoroughly separatethe grain from the cockle, without l regard to the fineness of. either, a thing which can not be efiected by screening, for the reason that the kernelsof coarse cockle are larger-than those of. small'wheat; nor'by fanning, for

the reason that the specific gravity of thewheat and of thecockle is too nearly equal; nor by the employment of a fuzzy surface, because the cookie isliable to fall off firo'musuch a surface, whilev the light wheat, which is somewhat fuzzy at the end of the kernel, is liable to adhere thereto, rendering the separation incomplete. Y Besides these advantages, the machine is exceedingly simple, light, cheap, and diuable.

Having thus descn'bed our invention,

What we claim as new, and desire to secure by Letters Patent, is-

1. The arrangement of the incline I, hinged bail c, hopper G, and rollers O D, for the prupose of rendering the feed adjustable, substantially as described.

2. The arrangement aud'cornbination of the rollers C D, cog-rim 0, screen F, and arm fisubstantially as andfor the purpose specified.

S. W. ANDREWS.

L. GODFREY. Witnesses:

Jenn N. Srnvnus, J. A. GALBRAITH.

as they passbetween the rollers, drop, by their own 

